Other Products

Surreal Development has been around for awhile and has a few older products.

BiScan for GM

BiScan is a simple application that was Surreal Development’s gateway into automotive scan tool products. It is a cost effective solution to perform service features, such as a service regeneration, on a selection of GM vehicles. BiScan only costs roughly $50 for a setup while an equivalent tool could cost thousands.

BiScan users get free access to Gretio until July of 2022. Android users must have BiScan installed on their phone to receive this.

After July 2022 you must migrate your purchase to Gretio. Fill out the form here.

Biscan is available on Google Play.


RAMMP is Surreal Development’s messaging system for creating secure closed networks. It consists of the presentation and session layer.


RAMMP allows secure end to end communication between nodes. Since it is a messaging protocol it can be used with reliable or unreliable transport layers (ISO15765, UDP, TCP, etc…). The nonce and time components of RAMMP allow effective relay attack mitigation. RAMMP can use most symmetric encryption algorithms but is designed for the ChaCha20-Poly1305 due to its low computational cost.

EFI Live LUZ Cax

An open source project made to bring efi live to the under appreciated diesel Cruze. See more about it here.

Surreal Delta Tuner

An application made for programming pretty much any GM module. It works by separating a tuner’s changes, called the ‘.delta’ file, and the base OEM tune, the ‘.base’ file. This allows easy separation of ownership to satisfy intellectual property laws. Only at the last possible minute are the two files combined to create the working calibration.

Due to EPA regulations and potential abuse, access to this program is heavily regulated.

Misc Supporting Tools

Gretio WebSocket API

J2534 Refrence